Some embodiments include methods for treating surfaces. Beads and/or other insolubles may be dispersed within a liquid carrier to form a dispersion. A transfer layer may be formed across a surface. The dispersion may be directed toward the transfer layer, and the insolubles may impact the transfer layer. The impacting may generate force in the transfer layer, and such force may be transferred through the transfer layer to the surface. The surface may be a surface of a semiconductor substrate, and the force may be utilized to sweep contaminants from the semiconductor substrate surface. The transfer layer may be a liquid, and in some embodiments may be a cleaning solution.